Finding the Fourth Proportional to 105,050.56, 144,970.83 and 57,304.91

Step by Step Solution

1. Step 1: Write the proportion equation
   105,050.56 : 144,970.83 = 57,304.91 : x
2. Step 2: Convert to fraction form
   105,050.56/144,970.83 = 57,304.91/x
3. Step 3: Cross multiply
   105,050.56x = 144,970.83 × 57,304.91
4. Step 4: Simplify right side
   105,050.56x = 8,307,540,365.78
5. Step 5: Solve for x
   x = 8,307,540,365.78/105,050.56
6. Step 6: Final answer
   x = 79,081.35